File:Synthetic sapphire 3.jpg
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Size of this preview: 602 × 599 pixels. Other resolutions: 241 × 240 pixels | 482 × 480 pixels | 772 × 768 pixels | 1,264 × 1,258 pixels.
Original file (1,264 × 1,258 pixels, file size: 844 KB, MIME type: image/jpeg)
Summary
| Description |
English: (15 millimeters across at its widest)
This brilliant cut, synthetic blue sapphire was manufactured by the Verneuil process. Sapphire is aluminum oxide (Al2O3). In nature, this chemical is called corundum. Gem-quality corundum of any color except red is called "sapphire". When red, it is called "ruby". Corundum has a nonmetallic luster, can be any color, has a white streak, and a hardness of 9 on the Mohs Hardness Scale. It forms hexagonal crystals with flat ends and has no cleavage. See info. at: en.wikipedia.org/wiki/Sapphire and en.wikipedia.org/wiki/Verneuil_process |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/49518594482/ |
| Author | James St. John |
Licensing
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/49518594482 (archive). It was reviewed on 11 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:21, 6 April 2025 | | 1,264 × 1,258 (844 KB) | wikimediacommons>Zanahary | Cropped 50 % horizontally, 50 % areawise using CropTool with lossless mode. |
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